It depends. Brass Eagle produced an original Raptor, which was a blowback. They also created a pump gun called the Raptor.
The blowback is worth about $50, the pump is worth maybe $10 at the most. The blowback, from what I understand, is actually a decent marker without many problems. The pump is an absolute piece of crap that breaks after around thirty shots. I'd take either, run the pump into the ground or lovingly maintain the blowback. Good luck!
Noah

Ah, yeah, that's the Raptor Silver. Worth about $50 (the higher end of the range I gave ya) in good condition. It's a blowback, which means that most likely it's going to work through thick and thin if you take good care of it!
Noah